<html>
<head>
<style type="text/css">
body {
  /* try for some likely fonts that might implement the "fi" ligature */
  font-family: Times, Calibri, Palatino Linotype, DejaVu Serif, serif;
  font-size: 40pt;
}
.R {
  color: #FF0000;
}
.G {
  color: #00FF00;
}
</style>
</head>
<body>
<span class="R">fi</span>
</body>
</html>
